A soft metal or nonmetal sleeve, designed to mate with a pin-rivet. it may include an external wrenching facility which breaks off at a perdetermined torque to form a head.
NSN 5965-01-583-7392
NSN 6105-01-139-0025
NSN 6150-01-610-3999
NSN 5985-01-433-0247
NSN 5965-01-364-1232
NSN 6610-01-007-0268
NSN 6620-00-148-8307
NSN 5920-00-988-3533
NSN 5950-01-120-4740
NSN 5965-00-071-0562
NSN 5996-01-645-4831
NSN 7035-01-443-3052